Sions



(No Model.)

2 Sheets-Sheet 1. H. H. SSION HEATING APPAB. FOR RAI Y CARS.

- No. 460,281. Patented Sept. 29, 1891.

- 2 Sheets-Sheet 2. H. H. SESSIONS. HEATING APPARATUS FOR RAILWAY (JARS.

(No Model.)

Patented Sept. 29, 1891 mere-racy,

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UNITED STATES PATENT OFFICE.

HENRY HOIVARD SESSIONS, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE PULLHANS PALACE CAR COMPANY, OF SAME PLACE.

HEATING APPARATUS FOR RAILWAY-CARS.

SPECIFICATION forming part of Letters Patent No. 460,281, dated September 29, 1891.

Application filed April 15, 1890.

To aZZ whom it may concern:

Be it known that I, HENRY HowAED SEs- SIONS, of Chicago, Illinois, have invented certain new and useful Improvements in Heatin g Apparatus for Railway-Oars, of which the following is a specification.

My invention relates to certain improvements in that class of heating apparatus wherein a system of heating-pipes has coils thereof inclosed in the furnace and in which a circulation of water heated in said coils is maintained, a head for the water being procured by the employment of an elevated reservoir or tank, usually located above the roof of the car.

The object of my invention is to secure a better circulation of the heating-water, and this I do by changing the construction of the present apparatus, so as to conduct the water from the heating-coils through a pipe which delivers into the tank or reservoir at the end thereof, instead of on the bottom, as heretofore, and by placing within the reservoir or tank a vertical partition extending, preferably, from the bottom of the reservoir to about the mid-height of the chamber and toward the opposite end of said chamber say two-thirds of its distance-the exit-aperture' being provided in the end wall of the reservoir and on the opposite side of the partition from the point where the heated water enters. By this arrangement the incoming heated water is caused to traverse a distance along the chamber equal to thelength of the vertical partition before it mingles with or intercepts the outgoing water, and therefore the current established by the latter is not interfered with. The reservoir is provided with the usual safety-valve and filling appliance.

In the accompanying drawings, Figure 1 is a vertical sectional elevation through the end of the car wherein the heater is located, showing the heating-furnace, elevated reservoir, and a part of the pipe system in side elevation, some of the pipes being broken away, Fig. 2 is a section through the car at right angles to the view in Fig. 1, and showing the reservoir in end elevation. Fig. 3 is an end elevation of the reservoir detached. Fig. 4. is a transverse section through the same, cen- Serial No. 348,039. (No model.)

trally thereof; and Fig. 5 isalongitudinal elevation through the reservoir, one of the connected pipes being shown broken away and in elevation.

In the drawings, A represents the heater, within which is the coil B of the pipe system. Leading from the upper end of the coil is the upfiow-pipe O, which delivers the heated water into the end and near the bottom of the reservoir D. The latter is provided with the partition E, which may be formed integrally with the reservoir-shell and which extends from the end thereof, to which the inflowpipe is connected vertically of the chambersay to its mid-height-and lengthwise along the chamber, say two-thirds to three-fourths of its length. The outflow-pipe has its adit on the opposite side of the partition E from the inflow and is marked F. This pipe extends downward to the vicinity of the floor of the car, and thence is extended through the car and returned, connecting at the bottom of the furnace with the coil B. The reservoir is provided with the usual safety-valve G and a filling apparatus comprising the funnel II and the cock I, and which will be applied, preferably, at the end of the reservoir opposite that at which the pipes enter. The pipes of the circulation being filled with water and the reservoir filled to a level indicated by the line d cl the heated water will ascend through the pipe 0 and entering the reservoirD at its end will flow along the side and bottom thereof until it reaches the end of the partition E, where it will join the return current formed by the colder water and thence flow out of the chamber by way of the pipe F. The central partition operates not only to keep the currents separate,but also prevents the formation of cross-currents, which in its absence would be established in the reservoir by reason of the oscillations of the car, and in consequence its use greatly hastens the establishment of the circulation of the water.

As shown by an actual test, a circulation can be induced with this appliance in less than half the time necessary in the common construction, wherein said partition is not employed. I

I do not limit my invention to the precise form, location, or dimensions of the partition,

let openings for the circulatingwater in the 10 end wall to which the partition is joined and on opposite sides thereof, substantially as described.

IIENRY HOWARD SESSIONS.

Witnesses:

C. O. LINTHICUM, FREDERICK O. GooDWIN. 

